[270] | 1 | ##
|
---|
| 2 | # Array(Ext) Test
|
---|
| 3 |
|
---|
[439] | 4 | def assert_permutation_combination(exp, receiver, meth, *args)
|
---|
| 5 | act = []
|
---|
| 6 | ret = receiver.__send__(meth, *args) { |v| act << v }
|
---|
| 7 | assert "assert_#{meth}" do
|
---|
| 8 | assert_equal(exp, act.sort)
|
---|
| 9 | assert_same(receiver, ret)
|
---|
| 10 | end
|
---|
[331] | 11 | end
|
---|
| 12 |
|
---|
[439] | 13 | def assert_permutation(exp, receiver, *args)
|
---|
| 14 | assert_permutation_combination(exp, receiver, :permutation, *args)
|
---|
| 15 | end
|
---|
| 16 |
|
---|
| 17 | def assert_combination(exp, receiver, *args)
|
---|
| 18 | assert_permutation_combination(exp, receiver, :combination, *args)
|
---|
| 19 | end
|
---|
| 20 |
|
---|
[270] | 21 | assert("Array#assoc") do
|
---|
| 22 | s1 = [ "colors", "red", "blue", "green" ]
|
---|
| 23 | s2 = [ "letters", "a", "b", "c" ]
|
---|
| 24 | s3 = "foo"
|
---|
| 25 | a = [ s1, s2, s3 ]
|
---|
| 26 |
|
---|
| 27 | assert_equal [ "letters", "a", "b", "c" ], a.assoc("letters")
|
---|
| 28 | assert_nil a.assoc("foo")
|
---|
| 29 | end
|
---|
| 30 |
|
---|
| 31 | assert("Array#at") do
|
---|
| 32 | a = [ "a", "b", "c", "d", "e" ]
|
---|
| 33 | assert_equal "a", a.at(0)
|
---|
| 34 | assert_equal "e", a.at(-1)
|
---|
| 35 | end
|
---|
| 36 |
|
---|
| 37 | assert("Array#rassoc") do
|
---|
| 38 | a = [ [ 1, "one"], [2, "two"], [3, "three"], ["ii", "two"] ]
|
---|
| 39 |
|
---|
| 40 | assert_equal [2, "two"], a.rassoc("two")
|
---|
| 41 | assert_nil a.rassoc("four")
|
---|
| 42 | end
|
---|
| 43 |
|
---|
| 44 | assert("Array#uniq!") do
|
---|
| 45 | a = [1, 2, 3, 1]
|
---|
| 46 | a.uniq!
|
---|
| 47 | assert_equal [1, 2, 3], a
|
---|
| 48 |
|
---|
| 49 | b = [ "a", "b", "c" ]
|
---|
| 50 | assert_nil b.uniq!
|
---|
| 51 |
|
---|
| 52 | c = [["student","sam"], ["student","george"], ["teacher","matz"]]
|
---|
| 53 | assert_equal [["student", "sam"], ["teacher", "matz"]], c.uniq! { |s| s.first }
|
---|
| 54 |
|
---|
| 55 | d = [["student","sam"], ["teacher","matz"]]
|
---|
| 56 | assert_nil d.uniq! { |s| s.first }
|
---|
| 57 | end
|
---|
| 58 |
|
---|
| 59 | assert("Array#uniq") do
|
---|
| 60 | a = [1, 2, 3, 1]
|
---|
| 61 | assert_equal [1, 2, 3], a.uniq
|
---|
| 62 | assert_equal [1, 2, 3, 1], a
|
---|
| 63 |
|
---|
| 64 | b = [["student","sam"], ["student","george"], ["teacher","matz"]]
|
---|
| 65 | assert_equal [["student", "sam"], ["teacher", "matz"]], b.uniq { |s| s.first }
|
---|
| 66 | end
|
---|
| 67 |
|
---|
| 68 | assert("Array#-") do
|
---|
| 69 | a = [1, 2, 3, 1]
|
---|
| 70 | b = [1]
|
---|
| 71 | c = 1
|
---|
| 72 |
|
---|
| 73 | assert_raise(TypeError) { a - c }
|
---|
| 74 | assert_equal [2, 3], (a - b)
|
---|
| 75 | assert_equal [1, 2, 3, 1], a
|
---|
| 76 | end
|
---|
| 77 |
|
---|
| 78 | assert("Array#|") do
|
---|
| 79 | a = [1, 2, 3, 1]
|
---|
| 80 | b = [1, 4]
|
---|
| 81 | c = 1
|
---|
| 82 |
|
---|
| 83 | assert_raise(TypeError) { a | c }
|
---|
| 84 | assert_equal [1, 2, 3, 4], (a | b)
|
---|
| 85 | assert_equal [1, 2, 3, 1], a
|
---|
| 86 | end
|
---|
| 87 |
|
---|
[439] | 88 | assert("Array#union") do
|
---|
| 89 | a = [1, 2, 3, 1]
|
---|
| 90 | b = [1, 4]
|
---|
| 91 | c = [1, 5]
|
---|
| 92 |
|
---|
| 93 | assert_equal [1, 2, 3, 4, 5], a.union(b,c)
|
---|
| 94 | end
|
---|
| 95 |
|
---|
| 96 | assert("Array#difference") do
|
---|
| 97 | a = [1, 2, 3, 1, 6, 7]
|
---|
| 98 | b = [1, 4, 6]
|
---|
| 99 | c = [1, 5, 7]
|
---|
| 100 |
|
---|
| 101 | assert_equal [2, 3], a.difference(b,c)
|
---|
| 102 | end
|
---|
| 103 |
|
---|
[270] | 104 | assert("Array#&") do
|
---|
| 105 | a = [1, 2, 3, 1]
|
---|
| 106 | b = [1, 4]
|
---|
| 107 | c = 1
|
---|
| 108 |
|
---|
| 109 | assert_raise(TypeError) { a & c }
|
---|
| 110 | assert_equal [1], (a & b)
|
---|
| 111 | assert_equal [1, 2, 3, 1], a
|
---|
| 112 | end
|
---|
| 113 |
|
---|
[439] | 114 | assert("Array#intersection") do
|
---|
| 115 | a = [1, 2, 3, 1, 8, 6, 7, 8]
|
---|
| 116 | b = [1, 4, 6, 8]
|
---|
| 117 | c = [1, 5, 7, 8]
|
---|
| 118 |
|
---|
| 119 | assert_equal [1, 8], a.intersection(b,c)
|
---|
| 120 | end
|
---|
| 121 |
|
---|
[270] | 122 | assert("Array#flatten") do
|
---|
| 123 | assert_equal [1, 2, "3", {4=>5}, :'6'], [1, 2, "3", {4=>5}, :'6'].flatten
|
---|
| 124 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, 4, 5], 6].flatten
|
---|
| 125 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, [4, 5], 6]].flatten
|
---|
| 126 | assert_equal [1, [2, [3, [4, [5, [6]]]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(0)
|
---|
| 127 | assert_equal [1, 2, [3, [4, [5, [6]]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(1)
|
---|
| 128 | assert_equal [1, 2, 3, [4, [5, [6]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(2)
|
---|
| 129 | assert_equal [1, 2, 3, 4, [5, [6]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(3)
|
---|
| 130 | assert_equal [1, 2, 3, 4, 5, [6]], [1, [2, [3, [4, [5, [6]]]]]].flatten(4)
|
---|
| 131 | assert_equal [1, 2, 3, 4, 5, 6], [1, [2, [3, [4, [5, [6]]]]]].flatten(5)
|
---|
| 132 | end
|
---|
| 133 |
|
---|
| 134 | assert("Array#flatten!") do
|
---|
| 135 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, [4, 5], 6]].flatten!
|
---|
| 136 | end
|
---|
| 137 |
|
---|
| 138 | assert("Array#compact") do
|
---|
| 139 | a = [1, nil, "2", nil, :t, false, nil]
|
---|
| 140 | assert_equal [1, "2", :t, false], a.compact
|
---|
| 141 | assert_equal [1, nil, "2", nil, :t, false, nil], a
|
---|
| 142 | end
|
---|
| 143 |
|
---|
| 144 | assert("Array#compact!") do
|
---|
| 145 | a = [1, nil, "2", nil, :t, false, nil]
|
---|
| 146 | a.compact!
|
---|
| 147 | assert_equal [1, "2", :t, false], a
|
---|
| 148 | end
|
---|
| 149 |
|
---|
| 150 | assert("Array#fetch") do
|
---|
| 151 | a = [ 11, 22, 33, 44 ]
|
---|
| 152 | assert_equal 22, a.fetch(1)
|
---|
| 153 | assert_equal 44, a.fetch(-1)
|
---|
| 154 | assert_equal 'cat', a.fetch(4, 'cat')
|
---|
| 155 | ret = 0
|
---|
| 156 | a.fetch(100) { |i| ret = i }
|
---|
| 157 | assert_equal 100, ret
|
---|
| 158 | assert_raise(IndexError) { a.fetch(100) }
|
---|
| 159 | end
|
---|
| 160 |
|
---|
| 161 | assert("Array#fill") do
|
---|
| 162 | a = [ "a", "b", "c", "d" ]
|
---|
| 163 | assert_equal ["x", "x", "x", "x"], a.fill("x")
|
---|
| 164 | assert_equal ["x", "x", "x", "w"], a.fill("w", -1)
|
---|
| 165 | assert_equal ["x", "x", "z", "z"], a.fill("z", 2, 2)
|
---|
| 166 | assert_equal ["y", "y", "z", "z"], a.fill("y", 0..1)
|
---|
| 167 | assert_equal [0, 1, 4, 9], a.fill { |i| i*i }
|
---|
| 168 | assert_equal [0, 1, 8, 27], a.fill(-2) { |i| i*i*i }
|
---|
| 169 | assert_equal [0, 2, 3, 27], a.fill(1, 2) { |i| i+1 }
|
---|
| 170 | assert_equal [1, 2, 3, 27], a.fill(0..1) { |i| i+1 }
|
---|
| 171 | assert_raise(ArgumentError) { a.fill }
|
---|
| 172 |
|
---|
| 173 | assert_equal([0, 1, 2, 3, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, -2, 1))
|
---|
| 174 | assert_equal([0, 1, 2, 3, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, -2, 3))
|
---|
| 175 | assert_equal([0, 1, 2, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3..4))
|
---|
| 176 | assert_equal([0, 1, 2, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3...4))
|
---|
| 177 | assert_equal([0, 1, -1, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2..-2))
|
---|
| 178 | assert_equal([0, 1, -1, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2...-2))
|
---|
| 179 | assert_equal([0, 1, 2, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(3..4){|i| i+10})
|
---|
| 180 | assert_equal([0, 1, 2, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(3...4){|i| i+10})
|
---|
| 181 | assert_equal([0, 1, 12, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(2..-2){|i| i+10})
|
---|
| 182 | assert_equal([0, 1, 12, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(2...-2){|i| i+10})
|
---|
| 183 |
|
---|
| 184 | assert_equal [1, 2, 3, 4, 'x', 'x'], [1, 2, 3, 4, 5, 6].fill('x', -2..-1)
|
---|
| 185 | assert_equal [1, 2, 3, 4, 'x', 6], [1, 2, 3, 4, 5, 6].fill('x', -2...-1)
|
---|
| 186 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6].fill('x', -2...-2)
|
---|
| 187 | assert_equal [1, 2, 3, 4, 'x', 6], [1, 2, 3, 4, 5, 6].fill('x', -2..-2)
|
---|
| 188 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6].fill('x', -2..0)
|
---|
| 189 | end
|
---|
| 190 |
|
---|
| 191 | assert("Array#reverse_each") do
|
---|
| 192 | a = [ "a", "b", "c", "d" ]
|
---|
| 193 | b = []
|
---|
| 194 | a.reverse_each do |i|
|
---|
| 195 | b << i
|
---|
| 196 | end
|
---|
| 197 | assert_equal [ "d", "c", "b", "a" ], b
|
---|
| 198 | end
|
---|
| 199 |
|
---|
| 200 | assert("Array#rotate") do
|
---|
| 201 | a = ["a", "b", "c", "d"]
|
---|
| 202 | assert_equal ["b", "c", "d", "a"], a.rotate
|
---|
| 203 | assert_equal ["a", "b", "c", "d"], a
|
---|
| 204 | assert_equal ["c", "d", "a", "b"], a.rotate(2)
|
---|
| 205 | assert_equal ["b", "c", "d", "a"], a.rotate(-3)
|
---|
| 206 | assert_equal ["c", "d", "a", "b"], a.rotate(10)
|
---|
| 207 | assert_equal [], [].rotate
|
---|
| 208 | end
|
---|
| 209 |
|
---|
| 210 | assert("Array#rotate!") do
|
---|
| 211 | a = ["a", "b", "c", "d"]
|
---|
| 212 | assert_equal ["b", "c", "d", "a"], a.rotate!
|
---|
| 213 | assert_equal ["b", "c", "d", "a"], a
|
---|
| 214 | assert_equal ["d", "a", "b", "c"], a.rotate!(2)
|
---|
| 215 | assert_equal ["a", "b", "c", "d"], a.rotate!(-3)
|
---|
| 216 | assert_equal ["c", "d", "a", "b"], a.rotate(10)
|
---|
| 217 | assert_equal [], [].rotate!
|
---|
| 218 | end
|
---|
| 219 |
|
---|
| 220 | assert("Array#delete_if") do
|
---|
| 221 | a = [1, 2, 3, 4, 5]
|
---|
| 222 | assert_equal [1, 2, 3, 4, 5], a.delete_if { false }
|
---|
| 223 | assert_equal [1, 2, 3, 4, 5], a
|
---|
| 224 |
|
---|
| 225 | a = [1, 2, 3, 4, 5]
|
---|
| 226 | assert_equal [], a.delete_if { true }
|
---|
| 227 | assert_equal [], a
|
---|
| 228 |
|
---|
| 229 | a = [1, 2, 3, 4, 5]
|
---|
| 230 | assert_equal [1, 2, 3], a.delete_if { |i| i > 3 }
|
---|
| 231 | assert_equal [1, 2, 3], a
|
---|
| 232 | end
|
---|
| 233 |
|
---|
| 234 | assert("Array#reject!") do
|
---|
| 235 | a = [1, 2, 3, 4, 5]
|
---|
| 236 | assert_nil a.reject! { false }
|
---|
| 237 | assert_equal [1, 2, 3, 4, 5], a
|
---|
| 238 |
|
---|
| 239 | a = [1, 2, 3, 4, 5]
|
---|
| 240 | assert_equal [], a.reject! { true }
|
---|
| 241 | assert_equal [], a
|
---|
| 242 |
|
---|
| 243 | a = [1, 2, 3, 4, 5]
|
---|
| 244 | assert_equal [1, 2, 3], a.reject! { |val| val > 3 }
|
---|
| 245 | assert_equal [1, 2, 3], a
|
---|
| 246 | end
|
---|
| 247 |
|
---|
| 248 | assert("Array#insert") do
|
---|
| 249 | a = ["a", "b", "c", "d"]
|
---|
| 250 | assert_equal ["a", "b", 99, "c", "d"], a.insert(2, 99)
|
---|
| 251 | assert_equal ["a", "b", 99, "c", 1, 2, 3, "d"], a.insert(-2, 1, 2, 3)
|
---|
| 252 |
|
---|
| 253 | b = ["a", "b", "c", "d"]
|
---|
| 254 | assert_equal ["a", "b", "c", "d", nil, nil, 99], b.insert(6, 99)
|
---|
| 255 | end
|
---|
| 256 |
|
---|
| 257 | assert("Array#bsearch") do
|
---|
| 258 | # Find minimum mode
|
---|
[439] | 259 | a = [0, 2, 4]
|
---|
| 260 | assert_equal 0, a.bsearch{ |x| x >= -1 }
|
---|
| 261 | assert_equal 0, a.bsearch{ |x| x >= 0 }
|
---|
| 262 | assert_equal 2, a.bsearch{ |x| x >= 1 }
|
---|
| 263 | assert_equal 2, a.bsearch{ |x| x >= 2 }
|
---|
| 264 | assert_equal 4, a.bsearch{ |x| x >= 3 }
|
---|
| 265 | assert_equal 4, a.bsearch{ |x| x >= 4 }
|
---|
| 266 | assert_nil a.bsearch{ |x| x >= 5 }
|
---|
[270] | 267 |
|
---|
| 268 | # Find any mode
|
---|
[439] | 269 | a = [0, 4, 8]
|
---|
| 270 | def between(lo, x, hi)
|
---|
| 271 | if x < lo
|
---|
| 272 | 1
|
---|
| 273 | elsif x > hi
|
---|
| 274 | -1
|
---|
| 275 | else
|
---|
| 276 | 0
|
---|
| 277 | end
|
---|
| 278 | end
|
---|
| 279 | assert_nil a.bsearch{ |x| between(-3, x, -1) }
|
---|
| 280 | assert_equal 0, a.bsearch{ |x| between(-1, x, 1) }
|
---|
| 281 | assert_nil a.bsearch{ |x| between( 1, x, 3) }
|
---|
| 282 | assert_equal 4, a.bsearch{ |x| between( 3, x, 5) }
|
---|
| 283 | assert_nil a.bsearch{ |x| between( 5, x, 7) }
|
---|
| 284 | assert_equal 8, a.bsearch{ |x| between( 7, x, 9) }
|
---|
| 285 | assert_nil a.bsearch{ |x| between( 9, x, 11) }
|
---|
[270] | 286 |
|
---|
[439] | 287 | assert_equal 0, a.bsearch{ |x| between( 0, x, 3) }
|
---|
| 288 | assert_equal 4, a.bsearch{ |x| between( 0, x, 4) }
|
---|
| 289 | assert_equal 4, a.bsearch{ |x| between( 4, x, 8) }
|
---|
| 290 | assert_equal 8, a.bsearch{ |x| between( 5, x, 8) }
|
---|
[270] | 291 |
|
---|
[439] | 292 | # Invalid block result
|
---|
| 293 | assert_raise TypeError, 'invalid block result (must be numeric, true, false or nil)' do
|
---|
| 294 | a.bsearch{ 'I like to watch the world burn' }
|
---|
| 295 | end
|
---|
[270] | 296 | end
|
---|
| 297 |
|
---|
[439] | 298 | # tested through Array#bsearch
|
---|
| 299 | #assert("Array#bsearch_index") do
|
---|
| 300 | #end
|
---|
| 301 |
|
---|
[270] | 302 | assert("Array#keep_if") do
|
---|
| 303 | a = [1, 2, 3, 4, 5]
|
---|
| 304 | assert_equal [1, 2, 3, 4, 5], a.keep_if { true }
|
---|
| 305 | assert_equal [1, 2, 3, 4, 5], a
|
---|
| 306 |
|
---|
| 307 | a = [1, 2, 3, 4, 5]
|
---|
| 308 | assert_equal [], a.keep_if { false }
|
---|
| 309 | assert_equal [], a
|
---|
| 310 |
|
---|
| 311 | a = [1, 2, 3, 4, 5]
|
---|
| 312 | assert_equal [4, 5], a.keep_if { |val| val > 3 }
|
---|
| 313 | assert_equal [4, 5], a
|
---|
| 314 | end
|
---|
| 315 |
|
---|
| 316 | assert("Array#select!") do
|
---|
| 317 | a = [1, 2, 3, 4, 5]
|
---|
| 318 | assert_nil a.select! { true }
|
---|
| 319 | assert_equal [1, 2, 3, 4, 5], a
|
---|
| 320 |
|
---|
| 321 | a = [1, 2, 3, 4, 5]
|
---|
| 322 | assert_equal [], a.select! { false }
|
---|
| 323 | assert_equal [], a
|
---|
| 324 |
|
---|
| 325 | a = [1, 2, 3, 4, 5]
|
---|
| 326 | assert_equal [4, 5], a.select! { |val| val > 3 }
|
---|
| 327 | assert_equal [4, 5], a
|
---|
| 328 | end
|
---|
| 329 |
|
---|
| 330 | assert('Array#values_at') do
|
---|
| 331 | a = %w{red green purple white none}
|
---|
| 332 |
|
---|
| 333 | assert_equal %w{red purple none}, a.values_at(0, 2, 4)
|
---|
| 334 | assert_equal ['green', 'white', nil, nil], a.values_at(1, 3, 5, 7)
|
---|
| 335 | assert_equal ['none', 'white', 'white', nil], a.values_at(-1, -2, -2, -7)
|
---|
| 336 | assert_equal ['none', nil, nil, 'red', 'green', 'purple'], a.values_at(4..6, 0...3)
|
---|
| 337 | assert_raise(TypeError) { a.values_at 'tt' }
|
---|
| 338 | end
|
---|
| 339 |
|
---|
| 340 | assert('Array#to_h') do
|
---|
| 341 | assert_equal({}, [].to_h)
|
---|
| 342 | assert_equal({a: 1, b:2}, [[:a, 1], [:b, 2]].to_h)
|
---|
| 343 |
|
---|
| 344 | assert_raise(TypeError) { [1].to_h }
|
---|
| 345 | assert_raise(ArgumentError) { [[1]].to_h }
|
---|
| 346 | end
|
---|
| 347 |
|
---|
| 348 | assert("Array#index (block)") do
|
---|
| 349 | assert_nil (1..10).to_a.index { |i| i % 5 == 0 and i % 7 == 0 }
|
---|
| 350 | assert_equal 34, (1..100).to_a.index { |i| i % 5 == 0 and i % 7 == 0 }
|
---|
| 351 | end
|
---|
[331] | 352 |
|
---|
| 353 | assert("Array#dig") do
|
---|
| 354 | h = [[[1]], 0]
|
---|
| 355 | assert_equal(1, h.dig(0, 0, 0))
|
---|
| 356 | assert_nil(h.dig(2, 0))
|
---|
| 357 | assert_raise(TypeError) {h.dig(:a)}
|
---|
| 358 | end
|
---|
| 359 |
|
---|
| 360 | assert("Array#slice!") do
|
---|
| 361 | a = [1, 2, 3]
|
---|
| 362 | b = a.slice!(0)
|
---|
| 363 | c = [1, 2, 3, 4, 5]
|
---|
| 364 | d = c.slice!(0, 2)
|
---|
| 365 | e = [1, 2, 3, 4, 5]
|
---|
| 366 | f = e.slice!(1..3)
|
---|
| 367 | g = [1, 2, 3]
|
---|
| 368 | h = g.slice!(-1)
|
---|
| 369 | i = [1, 2, 3]
|
---|
| 370 | j = i.slice!(0, -1)
|
---|
| 371 |
|
---|
| 372 | assert_equal(a, [2, 3])
|
---|
| 373 | assert_equal(b, 1)
|
---|
| 374 | assert_equal(c, [3, 4, 5])
|
---|
| 375 | assert_equal(d, [1, 2])
|
---|
| 376 | assert_equal(e, [1, 5])
|
---|
| 377 | assert_equal(f, [2, 3, 4])
|
---|
| 378 | assert_equal(g, [1, 2])
|
---|
| 379 | assert_equal(h, 3)
|
---|
| 380 | assert_equal(i, [1, 2, 3])
|
---|
| 381 | assert_equal(j, nil)
|
---|
| 382 | end
|
---|
[439] | 383 |
|
---|
| 384 | assert("Array#permutation") do
|
---|
| 385 | a = [1, 2, 3]
|
---|
| 386 | assert_permutation([[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]], a)
|
---|
| 387 | assert_permutation([[1],[2],[3]], a, 1)
|
---|
| 388 | assert_permutation([[1,2],[1,3],[2,1],[2,3],[3,1],[3,2]], a, 2)
|
---|
| 389 | assert_permutation([[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]], a, 3)
|
---|
| 390 | assert_permutation([[]], a, 0)
|
---|
| 391 | assert_permutation([], a, 4)
|
---|
| 392 | assert_permutation([], a, -1)
|
---|
| 393 | end
|
---|
| 394 |
|
---|
| 395 | assert("Array#combination") do
|
---|
| 396 | a = [1, 2, 3, 4]
|
---|
| 397 | assert_combination([[1],[2],[3],[4]], a, 1)
|
---|
| 398 | assert_combination([[1,2],[1,3],[1,4],[2,3],[2,4],[3,4]], a, 2)
|
---|
| 399 | assert_combination([[1,2,3],[1,2,4],[1,3,4],[2,3,4]], a, 3)
|
---|
| 400 | assert_combination([[1,2,3,4]], a, 4)
|
---|
| 401 | assert_combination([[]], a, 0)
|
---|
| 402 | assert_combination([], a, 5)
|
---|
| 403 | assert_combination([], a, -1)
|
---|
| 404 | end
|
---|
| 405 |
|
---|
| 406 | assert('Array#transpose') do
|
---|
| 407 | assert_equal([].transpose, [])
|
---|
| 408 | assert_equal([[]].transpose, [])
|
---|
| 409 | assert_equal([[1]].transpose, [[1]])
|
---|
| 410 | assert_equal([[1,2,3]].transpose, [[1], [2], [3]])
|
---|
| 411 | assert_equal([[1], [2], [3]].transpose, [[1,2,3]])
|
---|
| 412 | assert_equal([[1,2], [3,4], [5,6]].transpose, [[1,3,5], [2,4,6]])
|
---|
| 413 | assert_raise(TypeError) { [1].transpose }
|
---|
| 414 | assert_raise(IndexError) { [[1], [2,3,4]].transpose }
|
---|
| 415 | end
|
---|